Car-coupling.



A. TAWLKS.

CAR GOUPLING.

APPLICATION FILED mm2?, 1910.

Patented Apr. 25, 1911.

fWe A wbb/Meow@ Cgi einen s .sfr

il FCE.

ALLAN TAWLKS,. OF HARVEY, NO-TH DAKOTA, ASSIGNOR OF ONE-HALF TO IRA D.CLARK, OF HARVEY, NORTH DAKOTA.

CAR-COUPLING.

fo all whom 'honey concern.'

ie it known that I. ALLAN `.-\wmis, a citizen of the United States,Vresiding at liarvey. in the county of Tells and State of North Dakota.have invented a new and useful Car-Coupling, of which the following' isa specification.'

The invention relates to improvements in car couplings.

They object of the present invention is to improve the construction ofcar couplings, and to provide simple. inexpensive and e'iicient meansfor connecting the draw bar of a car coupling with the draft rigging,whereby the car coupling may be quickly removed and replaced, so thatcars will not be delayed in transit. when breakage of a ear coupling ordraft spring or other''iortion of the draft rigging.

ldlith these and other objects in view, the

invention consists in the construction andv novel combinz-tion of partshereinafter fully described, illustrated inthe accompanying drawing, andpointed out in the claim hereto appended; it being understood thatvarions changes in the form.7 proportion, size and minor details ofconstruction, within the scope of the claim, may be resort-ed to'without departing from the spirit or sacri-l ficing;- any of theadvantages ofthe inventionA 'ln the drawingtnigure l. is a sideelevation of car coupling, constructed in accordance with thisinvention. Fig. 2 is a plan view of the saine. Fig. 3 is a detailsectional view illustrating the construction for detachabiyconnectingthe draw bar with the draft. yoke. Fig. 4t is ay transversesectional View on the lines i-4 of Fig. l. Fig. 5 is a detailperspective view of the draft yoke. Fin'. 'ti is ay similar view of ther-ear portion of the draw bar.

Like n unier: responding pi drawinrf.

l designates a dra.

of reference designate corall the figures of the having a suitablecoupler head 2 at einihand provided at its inner end with i A Ler andlower front and rear lugs 3 and si, arranged in pairsI and forming; anintervening groove, for the re-l ception of outer or front. ings 6 .of adraft yoke 7. ihe draft yoke 7, which is approxiinately U-shaped, iscompose-,d of upper and lower sides or portions and a connectingvertical inner or rear portion S, vand it is de- Specication of LettersPatent.

laden with freightfby the.

Patented Apr. 25, 1.911.

Application inea January 27, 1910. serial No. 540,441.

form engaging;- portions, and the rear lugs 4f of the draw bar 1 havetheir front transverse edges 10 correspondingly beveled or inclined toform grooves or Ways in which the lugs of the draft yoke are interlockedwhen the parts are assembled. The outer transv rse faces 1l of the lugs6 of the draft yoke are vertical, and the rear transverse edges or faces1,2 of the front or outer lugs 3 of the draw bar l are also vertical tofit the end faces or edgesll of the draft yoke.

The draw bar is' engaged with and disengaged .from the draft yoke byrotating it a quarter of a revolution to carry'the front and rear lugs 3and 4 from the sides of the draw bar 'to the top and vice versa. 'Thedraw` bar vis introduced between the spaced lugs ,6 of the draft yokewith the front and rear lugs 3 and i at opposite sides of it. the spacebetween the lugs (i being sufficient for this purpose. TWhen the grooves5 are brought opposite the lugs 6, the draw bar is rotated one quarterof a revolution to swing the front and rear lugs 3 and 4- intoengageinent with the lugs 6. This partial. turning of the draw bar onits longitudinal axis carries the front and rear lugs 3 and 4 to theirnormal position at the top and bottoni of the draw bar, and they aredisengaged from the lugs G by rotating the draw bar backward one quarterof a revolution to arrange them at opposite sides of the draw bar. Thismanner of interlocking the draw bar andthe draft yoke enables the formerto be `quickly connet'ztwl with and disconnected from the draft yoke.and a car couplingmay be readily removed from a car in the event 'of thebreakage of any of theparts of the draft riggino. and it may be quicklyreplaced without causing any material delay of a car when the same intransit. lhis is especially advantageous when handling fast frebjht orperishable goods, and it obviates the inconvenience and trouble ofcut-ting a CII car out from the center of a train when the draft riggingbecomes defective.

In order to enable the draw bar to be par- The bottoms of the grooves 5and-the lugs' 1+i present transverse convexly curved bearing faces, andthe lugs 6 are provided with inner concavely curved bearing faces 15 tofit the bearing` faces 14: of the grooves 5, and the upper and lowersides or portions of the yokes have transverse recesses 16, presentingconcave faces to iitthe rear lugs 3. These bearing faces permit the carcoupling to be rotated to connect its draw bar with and disconnect itfrom the draft yoke.

The car couplingis held against rotary movement by means of a. verticalkey 17, tapered from the top to the bottom to form a wedge-shapedengaging member and extending through recesses 1S and 19 of the yoke andthe front lugs 3 of the draw bar and through a slot 2O of the latter.'lhe slots or bifurcations 1S extend through the ends of the upper andlower sides of the yoke from the outer faces of the sides to the innerbearing faces preferably hollow, as shown, and the slot extendsvertically through the rear portion of the draw bar and connects therecesses 19. :Phe tapering wedge shaped key ei'igages ooth the draw bar.bar and eftcctually prevented from spreading. The lugs may be made of asize to per- `what I claim as new and 1:3 of the lugs G. The draw bar isand the draft yoke, and it is adapted to take up the wear and it pre-'bar and the ingl the lower end of the key and engagingv the lower sideor portion of the yoke at opposite sides of the recess 18 thereof. Whenit is desired to detach the car coupling, the

pin is removed and the key is detached. lhiswill permit the partialrotary Inovenient necessary to disengage the lugs of ther draw bar fromthose of the draft yoke.

Havingr thus fully described lnyinvention,`V

desire to secure by Letters Patent, is l The combination of a draftformingr intervening grooves to receivethe lugs of the yoke, the rearlugs having inclined faces to interlock With the inclinedl rear faces ofthe lugs of the draft yoke and the front lugs being provided withrecesses arranged in alinement with the bifurcations of the yoke, and atapering key arranged in the recesses of the front .lugs and the bifurcations of the yoke and passed through the y draw bar and presentinginclined faces to the parts at the front of the dovetailed lugs. Intestimony,

that I claim the foregoing as my own, I havehereto-,athxed my signa-`ture in the presence o ftivr'witnesses.

ALLAN TAWLKs.

W xtncsscs 1 ALAY- IVArrNnR, I. S. BiassEL.

yoke having spaced sides provided at their outer ends' with inwardlyextending lugs ,having in-j the sides of thel yoke being

